| Detection of umbilical venous constriction by Doppler flow measurement at midgestation. | |
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MedLine Citation:
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PMID: 20503250 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: To investigate whether umbilical venous velocity and venous velocity pulsation are associated with umbilical vein diameter, umbilical ring diameter and umbilical cord coiling index at midgestation. METHODS: Two hundred and eighty pregnant women were enrolled in the study at between 18 and 24 weeks of gestation. The diameter of the umbilical cord and internal diameter of the umbilical vein in a free loop and at the ring, and the umbilical coiling index, were measured using ultrasonography. Umbilical venous velocities were measured by Doppler ultrasonography at the umbilical ring and a free loop of the cord. RESULTS: All variables were successfully measured in 92% of the patients. There were negative correlations between the diameters of the umbilical ring and of the umbilical vein at the ring and the venous velocity at the umbilical ring. The venous velocity at the umbilical ring was significantly higher and the umbilical ring diameter was significantly lower in fetuses with umbilical venous pulsation at the free loop. Significant correlations were observed between the venous velocity and amplitude of pulsation. Venous pulsations at the free loop were frequently observed in fetuses with a hypercoiled cord. CONCLUSION: High venous velocity and increased venous pulsation at the umbilical ring may be associated with umbilical cord constriction. |
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Authors:
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J Hasegawa; T Mimura; T Morimoto; R Matsuoka; K Ichizuka; A Sekizawa; T Okai |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology Volume: 36 ISSN: 1469-0705 ISO Abbreviation: Ultrasound Obstet Gynecol Publication Date: 2010 Aug |
Date Detail:
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Created Date: 2010-08-03 Completed Date: 2011-01-05 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9108340 Medline TA: Ultrasound Obstet Gynecol Country: England |
Other Details:
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Languages: eng Pagination: 196-201 Citation Subset: IM |
Affiliation:
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Department of Obstetrics and Gynecology, Showa University School of Medicine, Tokyo, Japan. hasejun@oak.dti.ne.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Blood Flow Velocity
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physiology Confidence Intervals Constriction, Pathologic / ultrasonography Female Gestational Age Humans Pregnancy Ultrasonography, Doppler Ultrasonography, Prenatal / methods Umbilical Veins / abnormalities, physiopathology*, ultrasonography* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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